/Engine/Source/Runtime/Slate/Public/Widgets/Layout/SConstraintCanvas.h
ConstraintCanvas is a layout widget that allows you to arbitrary position and size child widgets in a relative coordinate space. Additionally it permits anchoring widgets.
class SConstraintCanvas : public [SPanel](API\Runtime\SlateCore\Widgets\SPanel)
TPanelChildren<...
Children
The ConstraintCanvas widget's children.